Basic Physics for Radiography
Terms : Hide Images
| 8130682 | Wavelength | The penetrating power of an X-ray beam determined by its energy and measured by the distance from one crest to the next | |
| 8130683 | Mechanical energy | Can be classified as either kinetic energy or potential energy | |
| 8130684 | Sine wave | A form of repeating wave that changes the field through which electric and magnetic properties pass | |
| 8130685 | Electromagnetic energy | Consists of light, X-rays, radio waves and microwaves | |
| 8130686 | Energy levels | Used to refer to the orbital shells of an atom | |
| 8130687 | Resistance to an electrical circuit | Any property of the circuit that opposes or hinders the flow of current | |
| 8130688 | Important functions of an electrical outlet | Resistance and frequency | |
| 8130689 | Velocity | Method that all electromagnetic energy moves through space | |
| 8130690 | Frequency of wave | The number of times per second that a crest passes a given point | |
| 8130691 | Sine Wave Velocity | Wavelength x Frequency = Velocity | |
| 8130692 | Photon | The smallest possible unit of electromagnetic energy | |
| 8130693 | Energy | The ability to do work | |
| 8130694 | Kinetic energy | Energy of motion, the ability of a moving object to do work | |
| 8130695 | Potential energy | "Stored" energy | |
| 8130696 | Chemical energy | Released through chemical changes in atoms or molecules | |
| 8130697 | Thermal energy | The result of atomic motion; commonly called heat | |
| 8130698 | Nuclear energy | The energy released by radionuclides used to produce electricity in a nuclear power plant | |
| 8130699 | Electric energy | Electricity; the ability of electric charges to do work | |
| 8130700 | Ionization | The process of producing an atom with an electric charge; gaining or losing electrons | |
| 8130701 | Proton | One of the fundamental particles that compose atoms; positive charge of +1 | |
| 8130702 | Voltmeter | Device used to measure the difference in electrical potential between two points in a parallel circuit | |
| 8130703 | Electron | One of the fundamental particles that compose an atom; located in an orbit around the nucleus and is negatively charged -1 | |
| 8130704 | Ammeter | Device used to measure the current flowing in a series circuit | |
| 8130705 | Transformer | Increases or decreases voltage | |
| 8130706 | Atom | Building blocks of matter | |
| 8130707 | Matter | Anything that occupies space and has shape or form; solids, liquids and gas | |
| 8130708 | K shell | Innermost shell of an atom | |
| 8130709 | Potential difference | The force or strength of the electron flow in a current | |
| 8130710 | Mass | The quantity of matter that makes up any physical object | |
| 8130711 | Step-down transformer | A two-coil transformer with more windings on the primary side | |
| 8130712 | Direct current | Current that flows in only one direction | |
| 8130713 | Current | The quantity of electrons flowing through a circuit | |
| 8130714 | Ohm | Unit of resistance | |
| 8130715 | Weight | Term which means approximately the same thing as "mass" | |
| 8130716 | X-Rays consist of... | Electromagnetic energy | |
| 8130717 | Volts | Units of which potential difference is measured | |
| 8130718 | 60 Hz | The frequency of alternating current delivered by electrical utilities in the U.S. and Canada | |
| 8130719 | Laws of Conservation | Matter and Energy can be neither created nor destroyed, but can change form | |
| 8130720 | Characteristics of X-Rays | Have no mass * Highly penetrating and invisible * Electrically neutral * Cause fluorescence in certain crystals * Cannot be focused with a lens * Produce biological changes in tissues * Affect photographic film | |
| 8130721 | Kilovolt peak (kVp) | Measures the potential difference across an X-Ray tube; equal to 1000 volts | |
| 8130722 | Milliampere (mA) | Measures X-ray tube current; equal to 1/1000 of an ampere | |
| 8130723 | Ampere (A) | Measures the rate of current flow in a circuit | |
| 8130724 | Diode | Allows electrons to flow in only one direction | |
| 8130725 | Rectification | Alternating current converted so that it flows in one direction only | |
| 8130726 | Step-up transformer | A two-coil transformer with more windings on the secondary side |
